We look at the division of 664653 by 80 
We're looking to find how many times 80 goes into 664653.

Going ahead to step 1:
6 divided by 80 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 80

Advancing to step 2:
66 divided by 80 is 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Include the next digit (4) from the dividend after 66, then repeat: 664 / 80

Moving on to step 3:
80 goes into 664 8 times with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 640 from 664 leaves us with 24.
Bring next digit (6) of the dividend behind the 24 and repeat the process: 246 / 80

Moving on to step 4:
80 can be fit into 246 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 83.0
If we subtract 240 from 246, we get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 80

Advancing to step 5:
The number 80 fits into 65 0 times, leaving a remainder of 65.
Write down 0 as next digit of the result. 
Result so far: 830.0
The remainder is 65 after subtracting 0 from 65.
Fetch the next digit (3) from the dividend, attach it to 65 and continue: 653 / 80

On to step 6:
The number 80 fits into 653 8 times, leaving a remainder of 13.
The next digit of our result is 8. 
Result so far: 8308.0
If we subtract 640 from 653, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
When dividing 130 by 80, we get 1 with a remainder of 50.
Write down 1 as next digit of the result. 
Result so far: 8308.1
If we subtract 80 from 130, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
The number 80 fits into 500 6 times, leaving a remainder of 20.
The next digit of our result is 6. 
Result so far: 8308.16
Subtract 480 from 500 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
80 goes into 200 2 times with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 8308.162
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
80 goes into 400 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 8308.1625
The remainder is 0 after subtracting 400 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8308.1625
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
When dividing 0 by 80, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8308.1625
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 8308.1625 with a remaining 0.0.